Blade-holder.



L- J. BAZZONI. BLADE HOLDER. APPLICATION FILED MAY 7, 1909.

1,1 155048. Patented Oct. 27, 1914.

:% Fig. 2.

W/T/VESSfS 'vices but which shall also hurrah earns WATENT F LEWIS Cl.BAZZONI, OF Sl/VAMPSCOTT, MASSACHUSETTS, ASSIGDJUE, TO UNITED SHOEMACHINERY COMPANY, 01? PA'LlZILIEtSON NEW JERSEY, A CORPORATION OF NEWBLADE-TIOIZDER.

Specification of letters Patent.

."atented (let. 27, 1914.

Application filed-May 7, 1909. Serial No. 494,579

I l i twwmupsaiott, in the county ol' Essex and (ommon'wealth olMassachusetts, have invented certain tinprovemtnts llt llladellolders.at which the l ollowing tltritilltl'tlOll, l

in connection with the aceompauying drawings. is a mecilieatimt, likerelerence char- I aciers on the drawings imhcatmg, like parts in theseveral tigzures.

The present invention relates to devices in which a cutting) blade orother tool is removably secured in a handle or support and moreparliculm-ly it relates to a holder capable ol elanuiiingr blades ol.various sizes, such as are f'tillll't'ltfllly enu'iloyed in cutting outthe uppers of boots and shoes.

In this class of devices, it is important to provide means which willclamp the blade serurely so that it cannot slip hilt which may beadjusted easily and quickly for releasing the blade.

.it-crirtlingly, a primary object of this invention is to provide aconstruction 01 blade holder which shall not only meet theserequirements in a more complete and satisfactory manner than is done byexisting debe comparatively inex wns'ive to mamrlacture.

\Vith this object in view, a u-inripal feature of the invention consistsin the provh sion of blade engaging means and yielding or compensatingmeans, such for example as a spring, for causing the blade engagingmeans to clamp a blade. By the employment of such means, blades of allsites witlr in the capacity of the holder are clamped with:eathstantially uni'lorm pressure and thcreds no liability that theblade will work loose in usebccause the blade clamping means adjustsitselt' autmnatically to each blade.

A, second feature of the invention eonsists in the provision of novelmeans for releasing: or unclampingz the blade. in the preilierredemlmdiment. of the invtattion. this releasing means will be used incombination with the spriue or other yielding, clamping means lierri'."rte-re mentioned, and it will ii'n-lade two relatively rotatablemembers, one oi? which, at least, is provided with a cam surtace(o-actingwith the other memher in such a manner that, as the members arerelativel ."rotated by the user ol the holder, the pressure oil: thespring will be released so that the blade may be adjusted in, or removedfront, the handle.

tn the illustrated embodiment at the invention. the blade holdercomprises, as is usual in this class of devices, a handle or support anda pair of clamping jaws arranged to engage a blade. these jaws beingrotatable within the handle and provided with cam surfaces upon theiredges to co-act with a part of the handle, as they are drawn inwardly,whereby the jaws are moved toward each other to clamp a blade.Preferably, the part 01 the handle which co-acts with the jaws comprisesa metallic sleeve, secured to the handle, but capable of rotationtherein, which sleeve is connected to the rotatable member ot'rthe bladereleasing means. so that, this member will he rotated with the sleeve.In addition to the features above specifically n'ientioned, theinvention comprises also certain other combinations and arrangements olelements, as well as details of construction, which will hereina'l'terbe fully described and then defined in the claims.

Referring to the accompaiiyingdrawings which illustrate one emlaalimcntoi". the invention. Figure 1, represents in side elevation a bladeholder of the type described with a blade in operative position; Fig. 2isa central horizontal lomritudinal section ol' the holder shown in Fig.l with part of i a blade shown elamped within the jaws; hie. fl is asimilar longitudinal section upon the central vertical plane throughFig. 1; l ig. lis a perspective view of the rear portion. of the holderwith the handle and certain minor parts sll()\\ll in section; and Fig. 5is a rear end view ol the jaws and associated parts, removed from thehandle.

i .s illustrated, 2 indicates the handle which commonly will be made ofwood, \liber, or the like. All of the other parts of the holder willpreferably be of metal. As shown in l igs. .3 and 3. the handle isprovided with a. cylindrical bore -i into the front end of which isinserted the sleeve 6 provided with a shoulder S to bear against the endof the handle ln order that this sleeve may be secured in the handle soas to be capable of rotation therein, it is provided that a groove 10,clearly shown in Fig. t, and one or more pins 12 are driven into thehandle so as to lie. in the groove. The

Qil

sleeve is provided with extensions l-l con-- nected With. the bladereleasing means, as will be explained.

For clamping a blade 16, there provided a pair of clamping j awe 18 ofsubstantially V-shape in section, each of which at its outer edge isprovided With a cam surface 20, coacting in the usual manner 'ith theWalls of a slot formed in the end of the sleeve so that jaws l8 andblade 16 compelled to rotate with the sleeve. I

At their rear ends, as shown in F 5, the jaws are turned outwardly toprovide flanges 20 engaging the 1" surface of the-member 22 of the bladev3" ing This member 22 provided .h recesses 24; to receive the onus thee nsions 14: so that the member will be rotated With the sleeve 6.Extendioe' rearwai l 7 the member 22 J projections lugs 26 whichcooperate with the other member .28 of the blade releasing means. i5 1.spring 30, preferably approximately elliptical in sectional outline, asshown clearly in Fig. is arranged to hear at one end iinst the cc" ,esor the sleeve (3 and at the other against the front surface oft-hemember 22. Th s spring, therefore, tends constantly to e the arts rear-*ardly in the handle and, through the cooperation oi. the Wed -lil einclined or cam surfaces .28 with the walls of the slot in the sieve, toeffect 'tl'ie clamping oi blade 16. The member 28 oi. the blade issecured rigidly in the h ndle in any suitable way, as by a pin .ud itsfront edge is provhled with earn 'races 36 which enthe lugs of member 22as the latter is TOtRliQL'l. all; their um sacs these cam surfaces mayconvenie. e provided with can readily know stops 38 so tlmt I r travclup the nu when. the lugs 26 in tl clined or can-1 surfaces have reachedthe extreme b do releasing" position, at which time the spring 30 willbe compressed to its greatest extent. The inclination of the surfaces 36is preferal'ily such that the force exerted by he spring 30 or anyaccidental twis inp; strain given to the blade 16 or jaws 1.8 Wlll beinsu'flicientto cause the lugs 26 to travel down. the surfaces ifdesired, however, a slight depression to receive the end of lug 26 maybe formed in each cam surface just below the stop 38 so that "there willbe even less liability of accidental release oi the blade.

It will be clear that with the lugs 26 at the u ver li out of theirtravel along surfaces 36, the spring 30 will be compressed and the jawswill be foe to occupy their most separated position. A blade having beeninserted Within the jaws, the user will turn the bla le and jaws in thehandle to cause the lugs :26 to travel down the surfaces 06 until the jWS are to of, through the iansion m n. E 1J1. mg; 2:, to fit are oneblade.

releasing means separate device il ustrated in Figs. 2 and 4 may heemploy such as a leaf spring, lO provided for- Wardend with a projection42 adapted to enter the groive 10 may be arranged to lie in a shallowupon the inside cit handle 2. This plate is provided at rear end with atapped hole dd into which is threaded screw at"), the head which iscountersunk to be substant airy with the surface of the handle. thisconstruo tion, the screw is located at a portion of the handle Where theWall relatively thick, thus providing ample space Within the Wall forthe screw. If the pins 17?. are not used and one or more of such plates46 are suhsti-- tuted, it will be seen that the ieve may readily beWithdrawn from the he the removal of the screw or screws Wlule'oneembodiment ot the i vention has been described in der he understood thatthe invention i ited to the details described but be embodied in variousother speciii constructions Without departing; from the spirit andessence of the invention as delired in the following claims.

Having described my invention, What ll claim as new and desire to secureby Letters Patent of the United States l. A blade holder comprising ahandle, a pair of jaws rotatable therein and provided Wilfll camsurfaces constructed and arranged to cooperate With a part of the handlefor moving the jaws toward each other to clamp a blade, a spring actingupon said jaws and tending constantly to move them to blade clampingposition, in combination With means acting in opposition to said springto it will not limrelease the blade,- the latter means comprising a cammember lined in said handle and a member rotatable With the jaws andcoacting with the cam member to release the jaws from the pressure ofthe spring.

2. A blade holder comprising a handle, a

pair ct jaws constructed and arranged to clamp and hold a blade byfrictional engagement only, a spring tending constantly to move saidjaws in. the cirection to clamp a blade and means acting; in oppositionto the spring to unclamp or release the blade and comprising a cammember and rela U-shape in As shown, thin plate,

' them toward each other to clamp a blade and means constructed andarranged to release the jaws comprising a cam member fixed in the handleand a rotatable member co-acting therewith but also movable out ofcontact with the cam member as the blade is clamped.

4. A blade holder comprising a handle, a pair of blade clamping jawsprovided with cam surfaces, a sleeve wlthin the handle extendingl forthe greater part of the length of the andle and being constructed andarranged to rotate therein while secured against longitudinal movement,the said sleeve being provided with a surface to coact'with the camsurfaces of the jaws, and means for movin the jaws longitudinally of thesleeve inclu ing a spring and two cooperating cam members, one fixed inthe handle and the other rotatable with the sleeve.

5. A blade holder comprising a handle, a pair of clamping jaws, meansfor movmg the jaws to clamp a blade, a sleeve rotatable within thehandle and jaw releasing means acting in opposition to the clam ingmeans inclu ing a member fixed in the andle near its rear end and acooperating member connected "with the sleeve to rotate therewith butcapable of longitudinal movement relatively thereto.

6. A blade holder comprising a nonmetallic hollow handle havmgwalls ofdecreasing thickness toward its forward end, a pair of clamping jaws, asleeve' rotatable within the handle and cooperating with the jaws tocontrol their clamping action in combination with means for securin thesleeve against longitudinal movement in the handle comprismg a lockingmember lying between the handle and the sleeve fixed near its rear endto the handle and connected near its front end to the sleeve so as tohold the latter against longitudinal, though per-' mitting rotary,movement with relation to the handle.

7. A blade holder comprising a handle, a pair of similar elongatedclamping jaws provided with engaging surfaces substantially V-shape insection constructed and arranged to clam a thin knife blade upon op:

posite sides a jacent each edge and pro-;

vided also with cam surfaces to cooperate with a part of the handle formoving the jaws toward each other, said jaws being rovided also withoutturned flanges at tieir' rear ends, in combination with a springengaging the flanges and tending constant y to force the jawslongitudinally relatively to the handle for clamping the blade and meansthrough which the action of the s ring may be nu lified and the bladereleased from the aws. 1

8. In a blade holder, the combination of a handle 2, a (pair of clampingjaws 18, a s ring 30 .ten ing to move the jaws into b ade clampingosition and means wholly inclosed within t e handle for actuating thejaws to release the blade comprising a member 28 fixed in the handle anda relatively rotatable cam member 22 movable with the jaws,substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LEWIS J. BAZZONI.

Witnesses FREDERICK L. EDMANDS, MARY E. MEUDUM.

